CN105745447B - Plastics pump case and its manufacture method - Google Patents
Plastics pump case and its manufacture method Download PDFInfo
- Publication number
- CN105745447B CN105745447B CN201480062677.6A CN201480062677A CN105745447B CN 105745447 B CN105745447 B CN 105745447B CN 201480062677 A CN201480062677 A CN 201480062677A CN 105745447 B CN105745447 B CN 105745447B
- Authority
- CN
- China
- Prior art keywords
- mould
- housing
- core
- inlet ports
- pressure reducing
- Prior art date
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Links
- 238000000034 method Methods 0.000 title claims abstract description 28
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 23
- 239000004033 plastic Substances 0.000 title claims description 45
- 229920003023 plastic Polymers 0.000 title claims description 45
- 239000012530 fluid Substances 0.000 claims abstract description 100
- 238000004891 communication Methods 0.000 claims abstract description 11
- 238000007493 shaping process Methods 0.000 claims abstract description 7
- 230000006837 decompression Effects 0.000 claims abstract description 4
- 230000000295 complement effect Effects 0.000 claims description 28
- 239000003365 glass fiber Substances 0.000 claims description 13
- 238000007711 solidification Methods 0.000 claims description 6
- 230000008023 solidification Effects 0.000 claims description 6
- 238000006073 displacement reaction Methods 0.000 claims description 4
- 238000005086 pumping Methods 0.000 claims 2
- 238000000465 moulding Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 8
- 238000012545 processing Methods 0.000 description 8
- 230000008569 process Effects 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000005498 polishing Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 230000008859 change Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 238000000227 grinding Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 1
- CDBYLPFSWZWCQE-UHFFFAOYSA-L Sodium Carbonate Chemical compound [Na+].[Na+].[O-]C([O-])=O CDBYLPFSWZWCQE-UHFFFAOYSA-L 0.000 description 1
- 230000006978 adaptation Effects 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 235000013405 beer Nutrition 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 235000013361 beverage Nutrition 0.000 description 1
- 235000012206 bottled water Nutrition 0.000 description 1
- 239000010951 brass Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 239000003651 drinking water Substances 0.000 description 1
- 235000015114 espresso Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/261—Moulds having tubular mould cavities
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/33—Moulds having transversely, e.g. radially, movable mould parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C21/00—Component parts, details or accessories not provided for in groups F01C1/00 - F01C20/00
- F01C21/10—Outer members for co-operation with rotary pistons; Casings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2/00—Rotary-piston machines or pumps
- F04C2/30—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members
- F04C2/34—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members
- F04C2/344—Rotary-piston machines or pumps having the characteristics covered by two or more groups F04C2/02, F04C2/08, F04C2/22, F04C2/24 or having the characteristics covered by one of these groups together with some other type of movement between co-operating members having the movement defined in groups F04C2/08 or F04C2/22 and relative reciprocation between the co-operating members with vanes reciprocating with respect to the inner member
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/26—Moulds
- B29C45/37—Mould cavity walls, i.e. the inner surface forming the mould cavity, e.g. linings
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
- B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
- B29K2105/06—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts
- B29K2105/12—Condition, form or state of moulded material or of the material to be shaped containing reinforcements, fillers or inserts of short lengths, e.g. chopped filaments, staple fibres or bristles
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C2230/00—Manufacture
- F04C2230/20—Manufacture essentially without removing material
- F04C2230/21—Manufacture essentially without removing material by casting
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2225/00—Synthetic polymers, e.g. plastics; Rubber
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05C—INDEXING SCHEME RELATING TO MATERIALS, MATERIAL PROPERTIES OR MATERIAL CHARACTERISTICS FOR MACHINES, ENGINES OR PUMPS OTHER THAN NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES
- F05C2253/00—Other material characteristics; Treatment of material
- F05C2253/04—Composite, e.g. fibre-reinforced
Abstract
A kind of method for manufacturing pump case, which is net shaping and is directly in its final shape and design specification, without more micro- secondary operation flows.This method is using the mould and core configured, so that fluid inlet ports, fluid outlet port or the pressure reducing valve port of the housing manufactured using mould and core all do not have any intersecting geometry.Net shaping pump case can also include transverse tube insert, which provides the fluid communication between fluid inlet port and decompression port.
Description
Technical field
The present invention relates to hydraulic pump manufacturing field.The present invention relates particularly to the net shape of mould and core production using configuration
It is molded the method for (net-shape molded) plastics pump case so that the fluid inlet of the housing manufactured using mould and core
Port, fluid outlet port or pressure reducing valve port all do not have any intersecting geometry (intersecting geometry).
Background technology
To reduce the relevant cost of manufacture positive displacement pump, in particular for the positive displacement pump of food applications type, it is expected use than
Make the more cheap material of the traditional brass and stainless steel material of pump case.It can be suitable for the modeling of the pump case of food applications
Expect material, it is often necessary to which adaptation uses under hot conditions of 300 degree more than Fahrenheit.Reduction is also helped from pump using plastics
The lead source of system.In food and potable water applications, this is very desired characteristic.
Glass-fiber filled plastics are usually applicable at the abovementioned high temperatures, still, related to the use of plastics in food applications
Guideline, such as the regulation of national sanitary foundation international, is commonly exposed to the glass fibre quantity on liquid-contacting part surface
It is restricted, such as one inch or less exposure glass fibre is limited to the inner surface of pump case.Actually apparently, if desired
Significant following process is carried out to parts of plastics, exposed fiber level would generally exceed this limitation.
Traditional mould and forming technique requirement manufacture relevant improvement with plastics pump case.Such mould and technology are led
Cause housing to need significant following process, therefore be not suitable for making the housing of food applications.
Therefore, it is necessary to a kind of improved method for making the plastic casing suitable for food applications, can use simultaneously after molding
And minimized any additional processing, and what is be processed further after moulding connect liquid inner surface less than 1 square inch.
The content of the invention
Above-mentioned and other requirement, wherein pump case can be met by a kind of method for manufacturing net formable plastics pump case
With fluid inlet ports, fluid outlet port and pressure reducing valve port, fluid inlet ports, fluid outlet port and pressure reducing valve end
Each in mouthful keeps being in fluid communication with pump chamber respectively.
A method according to the present present invention, comprises the following steps：The first mould is provided, first mould has inner surface
Pattern, the internal surface shape be configured to the external morphology complementary pair of the Part I of the housing should, and with the shell
The fluid inlet ports of body, the relevant pattern complementary pair of fluid outlet port and pressure reducing valve port should；Second mould is provided, it is described
Second mould has internal surface shape, and the internal surface shape is configured to complementary with the external morphology of the Part II of the housing
It is corresponding；The first core is provided, first core has outer shape, and the outer shape is configured to and the chamber of the housing
The internal morphology complementary pair of close end should；At least one second core is provided, second core has outer shape, described outer
Portion's shape configuration is should with the internal morphology complementary pair of the distal portion of the chamber of the housing.
First and second moulds, and the first and second cores are configured such that the shell manufactured using mould and core
Fluid inlet ports, fluid outlet port or the pressure reducing valve port of body all do not have any intersecting geometry.
First and second moulds assemble opposite to each other, and the first and second insert positions are adjacent to each other, and are arrived in mould in end
The relation at end, then plastics be injected into.After plastics solidification, the mould is pulled towards each other opposite direction, the core quilt
Opposite direction is pulled towards each other, and is approximately perpendicular to the pull direction of the mould, with the net Shaped shell of output.
The pump case of generation is not required secondary operation to be suitable for food applications.
Also disclose a kind of mould and core system for being used to manufacture net formable plastics pump case.
In another aspect, the present invention provides a kind of method for manufacturing net formable plastics pump case, the pump case tool
There are fluid inlet ports, fluid outlet port and pressure reducing valve port, the fluid inlet ports, fluid outlet port and pressure reducing valve
Each in port keeps being in fluid communication with pump chamber respectively.In one embodiment, the described method comprises the following steps：There is provided the
One mould, first mould have internal surface shape, and the internal surface shape is configured to and the Part I of the housing
External morphology complementary pair should, and fluid inlet ports with the housing, fluid outlet port and pressure reducing valve port are relevant
Pattern complementary pair should；The second mould is provided, second mould has internal surface shape, and the pattern is configured to and the housing
Part II external morphology complementary pair should；The first core is provided, first core has outer shape, the exterior shape
Shape is configured to should with the internal morphology complementary pair of the close end of the chamber of the housing；At least one second core is provided, described
Two cores have outer shape, and the outer shape is configured to the internal morphology complementary pair with the distal portion of the chamber of the housing
Should；Transverse tube insert is provided, the transverse tube insert has hollow, roughly cylindrical shape.
First and second mould, and the first and second cores are configured such that and are manufactured using mould and core
Fluid inlet ports, fluid outlet port or the pressure reducing valve port of housing all do not have any intersecting geometry.Further
Ground, the first and second moulds assemble opposite to each other, and the first and second insert positions are adjacent to each other, and are in close end to end in mould
System, and transverse tube insert is arranged in, the stream of the first mould pattern and the housing adjacent with the first mould pattern
Body inlet ports and pressure reducing valve port association, then plastics be injected into.After plastics solidification, the mould is pulled towards each other conversely
Direction, the core is pulled towards each other opposite direction, and is approximately perpendicular to the pull direction of the mould, net with output
Shaped shell.The transverse tube insert provides the fluid communication between the fluid inlet ports of molded housing and pressure reducing valve port.
On the other hand, the present invention provides a kind of mould and core system for being used to make net formable plastics pump case, institute
Stating pump case has fluid inlet ports, fluid outlet port and pressure reducing valve port, the fluid inlet ports, fluid outlet
Each in mouth and pressure reducing valve port keeps being in fluid communication with pump chamber respectively.In one embodiment, mould and core system bag
The first mould is included, it is complementary with the external morphology of the Part I of the housing that there is first mould internal surface shape to be configured to
It is corresponding, and fluid inlet ports with the housing, the relevant pattern complementary pair of fluid outlet port and pressure reducing valve port should；
There is internal surface shape to be configured to the external morphology complementary pair with the Part I of the housing for first mould, first mould
Should, and fluid inlet ports with the housing, the relevant pattern complementary pair of fluid outlet port and pressure reducing valve port should；The
One core, first core have an outer shape, the outer shape be configured to in the close end of the chamber of the housing
Portion's pattern complementary pair should；The second core is at least further included, second core has outer shape, and the outer shape is configured to
Internal morphology complementary pair with the distal portion of the chamber of the housing should.
First and second mould, and the first and second cores are configured such that and are manufactured using mould and core
Fluid inlet ports, fluid outlet port or the pressure reducing valve port of housing all do not have any intersecting geometry.First He
Second mould assembles opposite to each other, and the first and second insert positions are adjacent to each other, and is in relation, and horizontal end to end in mould
Tube insert is arranged in, the fluid inlet ports of the first mould pattern and the housing adjacent with the first mould pattern
Related to pressure reducing valve port, then plastics are injected into.After plastics solidification, the mould is pulled towards each other opposite direction, institute
State core and be pulled towards each other opposite direction, and be approximately perpendicular to the pull direction of the mould, with the net Shaped shell of output.
Further, transverse tube insert provides the fluid communication between the fluid inlet ports of molded housing and pressure reducing valve port.
In yet another aspect, the present invention provides net formable plastics pump case, and the housing has close end, distal portion and position
In the inner cavity in pump case.In one embodiment, pump is equipped with fluid inlet ports, fluid outlet port and pressure reducing valve port, flows
Each in body inlet ports, fluid outlet port and pressure reducing valve port keeps being in fluid communication with pump chamber respectively；And transverse tube
Insert, the transverse tube insert are arranged on pump case intracavitary, and the stream between fluid inlet ports and pressure reducing valve port
Body connects.Fluid inlet ports, fluid outlet port or the pressure reducing valve port of the housing all do not have any intersecting geometry knot
Structure.Further, the net shaping properties (net-mold nature) of the housing eliminate the needs of more micro- secondary operation,
So that the exposure total amount of glass fibre remains at or below 1 square inch of exposure total amount.
Brief description of the drawings
When considered in conjunction with the accompanying drawings, further advantage of the present invention can be learnt by referring to specific descriptions, attached drawing is not
In order to limit, but in order to clearly show that details, wherein reference symbol identical in multiple views represents identical element,
And wherein：
Fig. 1 is the front perspective view of pump made according to the present invention.
Fig. 2 is the front perspective view of pump case made according to the present invention.
Fig. 3 is the rear view of the pump case in Fig. 2.
Fig. 4 is the rear end sectional view of the pump case in Fig. 2.
Fig. 5 is the side cross-sectional view of the pump case in Fig. 2.
Fig. 6 and 7 is to be used to make the mould of housing and the exploded view of core in Fig. 2 according to the present invention.
Fig. 8 is the front perspective view of another embodiment of pump made according to the present invention.
Fig. 9 is the front perspective view of the pump case in Fig. 8.
Figure 10 is the rear view of the pump case in Fig. 9.
Figure 11 is the rear end sectional view of the pump case in Fig. 9.
Figure 12 is the side cross-sectional view of the pump case in Fig. 9.
Figure 13 is to be used to make the mould of housing and the exploded view of core in Fig. 9 according to the present invention, and Figure 14 is
Its installation diagram.
Figure 15 is the exploded view for the accessory assembly therefor for representing pump
Figure 16 is the front perspective view of another embodiment of pump case made according to the present invention.
Figure 17 is the rear view of the pump case in Figure 16.
Figure 18 is the front perspective view of transverse tube insert made according to the present invention.
Figure 19 is the rear end sectional view of the pump case in Figure 16.
Figure 20 is the side cross-sectional view of the pump case in Figure 16.
Figure 21 is the top cross-sectional view of the pump case in Figure 16.
Figure 22 is to be used to make the mould of housing and the exploded view of core in Figure 16 according to the present invention, and Figure 23 is
Its installation diagram.
Embodiment
The present invention relates to the method for pump of the manufacture with the molding plastic casing of net shape.Pump according to the present invention particularly suitable
In extraction water for beverages, such as extracting the water in soda water system, espresso machine and beer cooling system.
" formation type only " used herein is meant, substantially can be used after casing moulds, without any further
Notable processing, shaping or polishing, such as the general processing type completed using computer numerical control (CNC) equipment.That is,
Term " formation type (net-shape molded) only " used herein it will be appreciated that molding after housing usually i.e. can be used,
And allow a small amount of additional processing, and be subject to further in the liquid inner surface that connects by being only less than one square inch after being molded
Processing.
Therefore, housing after molding need not further be processed, is molded, polishing or other are handled to prepare to use,
It is interference-free to connect liquid surface, to expose glass fibre to liquid surface is connect, causes pump not to be suitable in food-grade application.Cause
This, the such pump case manufactured by glass-fiber filled plastics, disclosure satisfy that the limitation of glass fibre so that glass fibre
Exposure total amount is maintained at the exposure total amount equal to or less than one square inch.In addition, without significantly be processed further or similar
Processing, save the related manufacture cost further handled.
With reference first to Fig. 1-7, in the first embodiment, the present invention relates to have the molding plastic casing of net shape for manufacturing
The method of 12 pump 10.For example, pump 10 is configured to positive displacement impeller pump, it has a variety of dynamics matched with housing 12 and quiet
State pump part, such as rear cover, end plate, O-ring, bearing, seal, liner, rotor, impeller, pilot pin, clamp spring, axis, pressure reducing valve
14th, port 15 and 16, gasket, inlet filter etc. are inserted into.Pump 10 by bolt, press from both sides or other modes be coupled be connected to pump horse
Reach, e.g. the integrated or exterior electro-motor with output shaft.
Pump case 12 uses global formation plastic construction, which can be strengthened using fiber, for example with glass
Glass fiber is to increase its intensity and heat resistance.Housing 12 is configured to include close end 20 and distal portion 22.Close end and distal portion
22 limit the terminal part of pump chamber, and are sealed by using rear cover, seal etc., and wherein close end 20 is adapted for being installed on pump horse
Up to upper.
Housing 12 further includes three fluid passages port, which is configured to during the pump running, it is allowed to pre- constant current
Body passes through, that is to say, that at the first pressure, fluid inlet ports 24 receive fluid；Second or bigger pressure under, fluid
Outlet port 26 discharges fluid；And if pressure can pass through pressure reducing valve port more than a predeterminated level, fluid and pressure
28 release.Housing 12 limits internal pump chamber 30, internal pump chamber 30 by respectively with the relevant port ingress in port 24,26 and 28
24a, 24b, 26a, 26b and 28a, 28b and above-mentioned port 24,26,28 are in fluid communication.
In the known shell shaped only in offer, the mould for manufacturing housing 12 is configured such that all fluids
Access port, such as fluid inlet ports 24, fluid outlet port 26 and pressure reducing valve port 28, all without intersecting geometry knot
Structure.Since multiple ports reflect labyrinth, if formed by intersecting geometry, more micro- grindings will be needed to add
Work, therefore the configuration of such mould and pump case is from making housing shape (net molded) only and micro- be ground without more
Grind the demand of processing.
Therefore, then manufactured referring now to Fig. 6 and 7 by upper mold 40, lower die 42, near-end core 44 and distal end core 46
Housing 12.Mould 40 and 42, core 44 and 46 advantageously configure, so that fluid passage port, such as use mould and core
Fluid inlet ports 24, fluid outlet port 26 and the pressure reducing valve port 28 of the housing 12 of manufacture, do not produce intersecting geometry
Structure.As one part, it should be understood that therefore core 44 and 46 is not passed through any fluid passage.
The structure of mould and core also promotes simplified forming process, including mould and core are divided from molded housing 12
From simplification.Assembled towards each other in this regard, being interpreted as mould 40 and 42, core 44 and 46 in 40 and 42 position of mould each other
It is adjacent, and in relation end to end in mould, injected plastic afterwards.After plastics solidification, mould 40 and 42 is pulled towards each other
Opposite direction, as shown in arrow A, B (Fig. 6), core 44 and 46 is pulled towards each other opposite direction, and generally with mould
40 and 42 pull direction is vertical, as shown in arrow C, D (Fig. 6).
Upper mold 40 has internal surface shape 50, which is configured to the external morphology complementary pair with housing upper
Should, and should with the relevant pattern complementary pair in fluid inlet ports 24, fluid outlet port 26 and pressure reducing valve port 28.Lower die
42 have internal surface shape 52, which is configured to should with the external morphology complementary pair of 12 lower part of housing.Core 44
It is solid, and there is outer shape 54, which is configured to the inside with the close end of the chamber 30 of the housing 12
Pattern complementary pair is answered, and core 44 is substantially in cylinder.Core 46 is solid, and has outer shape 56, the outer shape 56
It is configured to correspond to the internal morphology of the close end of the chamber 30 of the housing 12, is ladder circle cylindrical profile.Upper mold 40 include bar 57,
58 and 59, wherein, insert 14,15 and 16 respectively by bar 57,58 and 59 slideably received within.
It will be appreciated that mould 40 and 28 phase of fluid inlet ports 24, fluid outlet port 26 and pressure reducing valve port from figure
The all of pass partially end up at distal end core 46, and core 46 is not passed through any fluid passage port on housing 12.Known mould
Configuration with the said structure and mould and core of core can manufacture mould, so that part can use immediately after molding,
Any further processing, shaping or polishing is not required.That is, die surface meets predetermined net shape and size,
Without further handling.
At the same time, it is also known that the above-mentioned characteristic of die assembly can realize simple drawing-die process, wherein by First Line
Property roping, which is moved, removes upper die and lower die, wherein upper die and lower die be pulled and away from each other, core moved by the second linear roping and
Remove, wherein near-end core and distal end core is pulled in the opposite direction, and the second linear roping is moved to be moved with the first linear roping
It is substantially vertical.
When the configuration of mould and core can be realized, this method for pulling mould and core, is believed to avoid
Occur needing to be processed further on moulded parts, be molded or the overlap of grinding process, flash and other plastics unrelated with moulded parts.
Therefore, the housing 12 that mould 40,42 and core 44,46 used according to the invention are moulded, it is considered to be formation type only, and accord with
Close desired net shape and size.
Referring now to Fig. 8-15, be related to has the molding plastic housing of net shape according to the second embodiment of the present invention for manufacturing
The method of the pump 100 of body 102.Housing 102 is substantially complete with housing 102 in addition to including distal end well insert 103 during molding
It is exactly the same.Preferably, well insert 103 is stainless steel, is arranged on the distal portion 22' equivalent to housing 102.Preferably,
Insert 103 has screw thread.Increase insert 103 can realize the tie point firmer than the plastic material of housing, and by
Think that providing running improves, including pump 100 will reduce noise during running than pump 10.
Housing 102 is manufactured using mould 40', 42' and core 44', 46'.Mould 40', 42' and core 44', 46' and mould
Tool 40,42 and core 44,46, when in well insert 103 after needing to receive in addition to the respective pattern of configuration section, substantially completely
It is identical.That is, there is provided well insert 103 is to provide the pattern of some more complicated housings 102, so as to simplify the interior of mould
Surface.In this respect, in addition to head, each appropriate section and mould 40', 42' of housing 102 and core 44', 46' reference
With the same-sign in the embodiment of Fig. 1-7.
As shown in figure 15, the pump intraware of the compatible a variety of production pumps 100 of housing 102.For example, as shown in the figure, housing 102
It is configured to receive pressure valve 14', pressure valve 14' includes the embedding seat 50 of valve, valve body 52, spring 54, O-ring 56, pressure reducing valve 58, valve pocket
60th, spring 62, adjusting screw 64, O-ring 66 and lid 68.Other assemblies include ball bearing 70, gasket 72, rear bearing 74,
Rotor 76, plastic lining 80, positioning pin 82, fore bearing 84, O-ring 86, plate 88 and split ring 90, wherein rotor 76 have by pin
The impeller 78 that 78a is separated.
With reference to figure 16-23, be related in further embodiment according to the present invention has the molding modeling of net shape for manufacturing
The method of the pump of material shell body 202.In addition to the additional transverse tube insert 92 for including housing 202, housing 202 is identical with housing 12.
In some cases, inner housing 202 can also include distal end well insert 103 " during molding.As shown in figure 21, transverse tube is inserted into
Thing 92 provides the fluid communication between pressure reducing valve port 28 " and fluid inlet ports 24 ".Therefore, if superpressure, mistake occur in pump
Surplus fluid is allowed through decompression 28 " --- so that reducing pressure superfluous in pump ---, and superfluous fluid is withdrawn into fluid
Inlet ports 24 ".
As shown in figure 18, transverse tube insert 92 is hollow, and generally cylindrical.Preferably, end 94 and 96 meets
Pressure reducing valve port 28 " and the generally a cylindrical shape of fluid inlet ports 24 ".Transverse tube insert 92 can be metal, but excellent
Choosing is manufactured using the plastic material identical with the remainder of housing 202.If using the plastic material identical with housing 202,
During the additional and curing to the plastics of housing, the material of transverse tube insert 92 can be fused with the parts of plastics of housing.
As depicted in figures 22 and 23, housing 202 is manufactured using mould 40 ", 42 " and a plurality of cores.Mould 40 " and 42 " with
Mould 40 and 42, the transverse tube insert 92 adjacent with the first mould pattern is received except a part for respective pattern is adapted to
Outside, substantially completely identical, the first mould pattern is associated with the fluid inlet ports of housing and pressure reducing valve port.Similarly, type
Core 44 " and 46 " is identical with core 44 and 46, can be rather than single by multiple cores 46 " and 48 " unless in some cases
Distal end core, there is provided the distal internal pattern of housing 202.
In general, in addition to head, each corresponding part and mould 40 ", 42 " and core 44 ", 46 " of housing 202 are joined
According to the identical numeral of the embodiment with Fig. 1-7 and Fig. 8-15.Embodiment just as the aforementioned, inside the compatible various pumps of housing 202
Component, such as gasket, O-ring, front and back bearings, rotor, end plate and split ring, wherein rotor, which have, slides impeller.
The explanation for providing each embodiment to the present invention above is for illustration and explanation.Being not intended to for its is detailed
Nothing left or the exact form disclosure for limiting its invention.According to following enlightenment can significantly change or replace.Choose and be situated between
The purpose for the embodiment that continues is to provide the principle of the invention and its puts into practice the best illustration of device, takes this technology for making this area
Personnel can with the application of the invention, and understand to meet the requirement of expected special-purpose, can formulate difference for the present invention
Embodiment and make different modifications.Such modification or change are intended to be included within, protection of the invention
Scope is provided by claim, its scope is explained according to fair, legal and equality range.
Claims (8)
1. a kind of method for manufacturing net formable plastics pump case, the pump case have the fluid that is connected respectively with pumping chamber fluid into
Mouth port, fluid outlet port and pressure reducing valve port, the described method comprises the following steps：
The first mould is provided, first mould has internal surface shape, which is configured to the housing
The external morphology complementary pair of a part is answered and the fluid inlet ports with the housing, fluid outlet port and pressure reducing valve port
Relevant pattern complementary pair should；
The second mould is provided, second mould, which has, to be configured to answer with the external morphology complementary pair of the Part II of the housing
Internal surface shape；
The first core is provided, first core has the internal morphology complementary pair being configured to the close end of the chamber of the housing
The outer shape answered；
At least one second core is provided, second core has the inside shape being configured to the distal portion of the chamber of the housing
The complementary corresponding outer shape of looks；And
Transverse tube insert is provided, the transverse tube insert has hollow, roughly cylindrical shape；
First mould and the second mould and the first core and the second core are wherein configured, so that using mould and core
Fluid inlet ports, fluid outlet port and the pressure reducing valve port of the housing of manufacture all do not have any intersecting geometry,
The first mould and the second mould are wherein assembled opposite to each other, make the first core and the second insert position adjacent to each other and in mould
Interior is in relation, and arrange the transverse tube insert with associating the fluid inlet ports and the decompression of the housing end to end
First mould pattern of valve port is adjacent, is then injected into plastics,
Wherein after plastics solidification, the mould is pulled towards each other to opposite direction, the core is pulled towards each other to opposite side
To and be approximately perpendicular to the pull direction of the mould, to produce net Shaped shell, and
Wherein described transverse tube insert provides the fluid communication between the fluid inlet ports of molded housing and pressure reducing valve port.
2. according to the method described in claim 1, wherein described plastic bag includes glass-fiber filled plastics.
3. according to the method described in claim 2, the net shaping properties of wherein described housing are eliminated to more micro- secondary operation
Needs so that the exposure total amount of glass fibre is maintained at the exposure total amount equal to or less than 1 square inch.
4. according to the method described in claim 1, wherein described housing is the housing suitable for positive displacement impeller pump.
5. according to the method described in claim 1, being additionally included in the second core adjacent sets distal end well insert described in
The distal portion of the chamber of housing.
6. according to the method described in claim 5, wherein distal end well insert has screw thread.
Be used to manufacturing the mould and core system of net formable plastics pump case 7. a kind of, the pump case have respectively with pump chamber stream
Fluid inlet ports, fluid outlet port and the pressure reducing valve port of body connection, mould and the core system include：
First mould, first mould have internal surface shape, which is configured to the Part I with pump case
External morphology complementary pair should, and fluid inlet ports to the housing, fluid outlet port and pressure reducing valve port are related
Pattern complementary pair should；
Second mould, second mould, which has, to be configured to and the complementary corresponding interior table of the external morphology of the housing second portion
Face pattern；
First core, first core are corresponding with the internal morphology complementation being configured to the close end of the chamber of the housing
Outer shape；And
At least one second core, second core are mutual with the internal morphology of the distal portion of the chamber of the housing with being configured to
Mend corresponding outer shape；
Wherein described first mould and the second mould and the first core and the second core are configured such that using mould and type
Fluid inlet ports, fluid outlet port and the pressure reducing valve port of the housing of core manufacture all do not have any intersecting geometry,
Wherein the first mould and the second mould assemble opposite to each other, and the first core and the second insert position are adjacent to each other and in mould
In relation end to end, and the transverse tube insert being arranged in mould is adjacent with the first mould pattern, the first mould shape
The fluid inlet ports and pressure reducing valve port association of looks and the housing, then plastics be injected into,
Wherein after plastics solidification, the mould is pulled towards each other opposite direction, and the core is pulled towards each other opposite side
To and be approximately perpendicular to the pull direction of the mould, one produces net Shaped shell, and
Wherein transverse tube insert provides the fluid communication between the fluid inlet ports of molded housing and pressure reducing valve port.
8. a kind of net formable plastics pump case of the inner cavity with close end, distal portion and pump case, the pump case include：
Fluid inlet ports, fluid outlet port and pressure reducing valve port, the fluid inlet ports, fluid outlet port or decompression
Each in valve port is connected with pumping chamber fluid respectively；And
The endoceliac transverse tube insert of pump case is arranged on, which connects with fluid inlet ports and pressure reducing valve port flow
It is logical,
Fluid inlet ports, fluid outlet port and the pressure reducing valve port of wherein described housing all do not have any intersecting geometry knot
Structure, and
Wherein described plastic bag includes glass-fiber filled plastics, the net shaping properties of the housing eliminate to more micro- secondary plus
The needs of work, so that the exposure total amount of glass fibre is maintained at the exposure total amount equal to or less than 1 square inch.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US14/032,774 | 2013-09-20 | ||
| US14/032,774 US9399312B2 (en) | 2011-03-14 | 2013-09-20 | Plastic pump housing and manufacture thereof |
| PCT/US2014/056495 WO2015042361A1 (en) | 2013-09-20 | 2014-09-19 | Plastic pump housing and manufacture thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105745447A CN105745447A (en) | 2016-07-06 |
| CN105745447B true CN105745447B (en) | 2018-04-24 |
Family
ID=51660658
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201480062677.6A Active CN105745447B (en) | 2013-09-20 | 2014-09-19 | Plastics pump case and its manufacture method |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP3055572B1 (en) |
| CN (1) | CN105745447B (en) |
| ES (1) | ES2649484T3 (en) |
| HK (1) | HK1226464A1 (en) |
| WO (1) | WO2015042361A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10677238B2 (en) | 2017-11-08 | 2020-06-09 | Ingersoll-Rand Industrial U.S., Inc. | Filled resin layer separated pump housing |
Citations (7)
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|---|---|---|---|---|
| US4543228A (en) * | 1984-01-13 | 1985-09-24 | Milton Roy Company | Injection molded sliding vane pump |
| US5660536A (en) * | 1996-01-05 | 1997-08-26 | Brunswick Corporation | High capacity simplified sea water pump |
| CN1164271A (en) * | 1993-10-29 | 1997-11-05 | 岚瑟公司 | Relief valve seat for positive displacement pump |
| CN1218544A (en) * | 1996-03-11 | 1999-06-02 | 史丹德克斯国际有限公司 | Sliding vane pump with plastic housing |
| US20030160527A1 (en) * | 2002-02-28 | 2003-08-28 | Kimberlin Robert R. | Fluid barrier for motor rotor |
| US20050214153A1 (en) * | 2004-03-25 | 2005-09-29 | Tuthill Corporation | Rotary vane pump |
| US20090104049A1 (en) * | 2007-10-18 | 2009-04-23 | Jie Jang | Sliding Vane Pump |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US10244A (en) * | 1853-11-15 | Improvement in uniting shovel-blades to the handle-straps | ||
| US2930398A (en) * | 1955-10-24 | 1960-03-29 | Grand Valley Machine And Tool | High capacity combination regulator and check valve |
| US5135700A (en) * | 1990-11-06 | 1992-08-04 | Nibco Inc. | Method and apparatus for molding a threaded product |
| GB0906768D0 (en) * | 2009-04-21 | 2009-06-03 | Pdd Innovations Ltd | Pumps |
-
2014
- 2014-09-19 WO PCT/US2014/056495 patent/WO2015042361A1/en active Application Filing
- 2014-09-19 EP EP14780990.9A patent/EP3055572B1/en active Active
- 2014-09-19 CN CN201480062677.6A patent/CN105745447B/en active Active
- 2014-09-19 ES ES14780990.9T patent/ES2649484T3/en active Active
-
2016
- 2016-12-23 HK HK16114640A patent/HK1226464A1/en unknown
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4543228A (en) * | 1984-01-13 | 1985-09-24 | Milton Roy Company | Injection molded sliding vane pump |
| CN1164271A (en) * | 1993-10-29 | 1997-11-05 | 岚瑟公司 | Relief valve seat for positive displacement pump |
| US5660536A (en) * | 1996-01-05 | 1997-08-26 | Brunswick Corporation | High capacity simplified sea water pump |
| CN1218544A (en) * | 1996-03-11 | 1999-06-02 | 史丹德克斯国际有限公司 | Sliding vane pump with plastic housing |
| US20030160527A1 (en) * | 2002-02-28 | 2003-08-28 | Kimberlin Robert R. | Fluid barrier for motor rotor |
| US20050214153A1 (en) * | 2004-03-25 | 2005-09-29 | Tuthill Corporation | Rotary vane pump |
| US20090104049A1 (en) * | 2007-10-18 | 2009-04-23 | Jie Jang | Sliding Vane Pump |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2015042361A1 (en) | 2015-03-26 |
| EP3055572A1 (en) | 2016-08-17 |
| ES2649484T3 (en) | 2018-01-12 |
| CN105745447A (en) | 2016-07-06 |
| EP3055572B1 (en) | 2017-09-06 |
| HK1226464A1 (en) | 2017-09-29 |
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